What is the power measurement for my walk/push mower engine?
Most walk mowers equipped with Briggs & Stratton engines fall into a common power range. The amount of power your engine provides determines the amount of work you can do. All Briggs & Stratton engines are sized in cubic centimeters (cc) and will be rated in one of the power ratings* below.
-Horsepower (HP) is the amount of raw potential an engine can generate. HP ratings are stated as gross horsepower at 3600 RPM per SAE J1940 as rated by Briggs & Stratton.
-Kilowatt (kW) is the metric equivalent of Horsepower.
-Torque Power (TQ) is the amount of rotational power that can be measured. TQ ratings are stated as gross torque at 2600 RPM per SAE J1940 as rated by Briggs & Stratton.
For more information on engine power ratings, click here.
| Series | Displacement | Gross HP (@ 3600 rpm) |
Gross kW (@ 3600 rpm) |
Gross TQ |
| 450 | 125cc | 2.75 | 2.05 | 4.50 |
| 550 | 140cc | 3.41 | 2.54 | 5.50 |
| 625 | 150cc | 3.88 | 2.89 | 6.25 |
| 725 | 163cc | 4.10 | 3.06 | 7.25 |
| 775 | 175cc | 5.10 | 3.80 | 7.75 |
| 850 | 190cc | 5.59 | 4.17 | 8.50 |
| 875 | 190cc | 5.80 | 4.33 | 8.75 |
| 1000 | 223cc | 6.24 | 4.65 | 10.00 |
*Power Ratings are the gross power rating for individual gasoline engine models is labeled in accordance with SAE (Society of Automotive Engineers) code J1940 Small Engine Power & Torque Rating Procedure, and is rated in accordance with SAE J1995. The equation to calculate horsepower is simple: Horsepower = Torque x RPM / 5,252.
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